Pyridoxine Impurity 20 CAS 36944-85-1
| CAS No. | 36944-85-1 |
| Molecular Formula | C8H10NO5P |
| Molecular Weight | 231.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyridoxine Impurity 20 (CAS 36944-85-1), a pharmacopoeial impurity reference standard (molecular formula C8H10NO5P, MW 231.14 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C8H10NO5P, Pyridoxine Impurity 20 contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Pyridoxine Impurity 20 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H10NO5P |
| Molecular Weight | 231.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Related Pyridoxine Standards
- Pyridoxine Impurity 10 (CAS 883-84-1)
- Pyridoxine Impurity 43 (CAS 1622-67-9)
- Pyridoxine Impurity T (CAS 801982-85-4)
- Pyridoxine /Vitamin B6 Impurity C35 (CAS 1805775-66-9)
- Pyridoxine Impurity 14 (CAS CATO-C4X-187714)
- Pyridoxine Impurity 7 (CAS 1385767-86-1)
- (Z)-Pyridoxine /Vitamin B6 Impurity 61 (CAS CATO-C4X-187761)
- Pyridoxine impurity 3 (CAS 91446-43-4)
Recommended Standards
- Methyl (4-nitrophenyl) methylphosphonate (CAS 7284-49-3)
- 6966-45-6 A836593 trisodium; (3Z)-3-[(E)-[4-[bis(oxidanidyl)amino]-6-oxidanylidene-cyclohexa-2,4-dien-1-ylidene]hydrazinylidene]-4-oxidanylidene-naphthalene-1-sulfonate; chromium(3+); 3-[(4-nitro-2-oxidanidyl-phenyl)diazenyl]-4-oxidanidyl-naphthalene-1-sulfonate trisodium; chromium(3+); (3Z)-3-[(E)-[4-(dioxidoamino)-6-oxo-1-cyclohexa-2,4-dienylidene]hydrazinylidene]-4-oxo-1-naphthalenesulfonate; 3-(4-nitro-2-oxidophenyl)azo-4-oxido-1-naphthalenesulfonate (CAS 6966-45-6)
- 4-chloro-2-methyl-benzenesulfonyl chloride (CAS 56157-92-7)
- 1-(4-Bromophenyl)propane-1-thiol (CAS 1039964-57-2)
- Ilaprazole Impurity 50 (CAS 2285346-38-3 (free base))
- Pantoprazole EP Impurity F (CAS 721924-06-7)
- Nimodipine Impurity 49 (CAS CATO-C4X-138549)
- 5-Acetyloxolan-2-one (CAS 29393-32-6)
- 1-Chloro-4-(1,3-dibromopropan-2-yl)benzene (CAS 1536023-37-6)
- 151293-15-1 5-(4-methylphenyl)-1H-pyrazol-3-amine A809157 (CAS 151293-15-1)
- 1-Cyclohexyl-N,N-dimethyl-1H-tetrazol-5-amine (CAS 343376-11-4)
- 2-(3-(2-Aminoethyl)-6-chloro-1h-indol-1-yl)acetamide (CAS 1334146-22-3)
- (3R)-1-tert-butoxycarbonylazepane-3-carboxylic acid (CAS 851593-77-6)
- Palmitoyl Tripeptide-5 TFA (CAS 623172-55-4（free base）)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com